Hi Randy, On 2021/1/31 1:53, Randy Dunlap wrote: > Hi-- > > On 1/29/21 11:10 PM, Chen Zhou wrote: >> --- >> Documentation/admin-guide/kdump/kdump.rst | 22 ++++++++++++++++--- >> .../admin-guide/kernel-parameters.txt | 11 ++++++++-- >> 2 files changed, 28 insertions(+), 5 deletions(-) >> >> diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt >> index a10b545c2070..908e5c8b61ba 100644 >> --- a/Documentation/admin-guide/kernel-parameters.txt >> +++ b/Documentation/admin-guide/kernel-parameters.txt > All of the "arm64" instances in [square brackets] should be "ARM64". Got it, thanks for your review. Thanks, Chen Zhou > >> @@ -738,6 +738,9 @@ >> [KNL, X86-64] Select a region under 4G first, and >> fall back to reserve region above 4G when '@offset' >> hasn't been specified. >> + [KNL, arm64] Try low allocation in DMA zone and fall back > here > >> + to high allocation if it fails when '@offset' hasn't been >> + specified. >> See Documentation/admin-guide/kdump/kdump.rst for further details. >> >> crashkernel=range1:size1[,range2:size2,...][@offset] >> @@ -754,6 +757,8 @@ >> Otherwise memory region will be allocated below 4G, if >> available. >> It will be ignored if crashkernel=X is specified. >> + [KNL, arm64] range in high memory. > here > >> + Allow kernel to allocate physical memory region from top. >> crashkernel=size[KMG],low >> [KNL, X86-64] range under 4G. When crashkernel=X,high >> is passed, kernel could allocate physical memory region >> @@ -762,13 +767,15 @@ >> requires at least 64M+32K low memory, also enough extra >> low memory is needed to make sure DMA buffers for 32-bit >> devices won't run out. Kernel would try to allocate at >> - at least 256M below 4G automatically. >> + least 256M below 4G automatically. >> This one let user to specify own low range under 4G >> for second kernel instead. >> 0: to disable low allocation. >> It will be ignored when crashkernel=X,high is not used >> or memory reserved is below 4G. >> - >> + [KNL, arm64] range in low memory. > here > >> + This one let user to specify a low range in DMA zone for >> + crash dump kernel. > > Thanks. > _______________________________________________ kexec mailing list kexec@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/kexec
